WO2020147737A1 - 波束恢复方法、装置、介质和设备 - Google Patents

波束恢复方法、装置、介质和设备 Download PDF

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Publication number
WO2020147737A1
WO2020147737A1 PCT/CN2020/072171 CN2020072171W WO2020147737A1 WO 2020147737 A1 WO2020147737 A1 WO 2020147737A1 CN 2020072171 W CN2020072171 W CN 2020072171W WO 2020147737 A1 WO2020147737 A1 WO 2020147737A1
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Prior art keywords
information
pucch
physical layer
dci
terminal
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PCT/CN2020/072171
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English (en)
French (fr)
Inventor
左君
倪吉庆
黄学艳
王森
王爱玲
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China Mobile Communications Group Co Ltd
Research Institute of China Mobile Communication Co Ltd
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China Mobile Communications Group Co Ltd
Research Institute of China Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • the present disclosure relates to the field of wireless technology, and in particular to a beam recovery method, device, medium and equipment.
  • High-frequency spectrum resources will be used more.
  • analog beamforming technology can be used to enable the terminal and the base station to select the optimal beam pair for communication.
  • High-frequency spectrum resources are abundant, but its radio propagation resistance is weak, and there is a serious blockage phenomenon. Walls, trees, and even people moving around can cause signal interruption, making it difficult to achieve continuous coverage.
  • the terminal judges that the beam pair currently communicating with the base station has poor communication link quality (for example, the block error rate (BLER) is higher than the threshold), it needs to notify the base station that the beam has failed to transmit, that is, it can send a beam recovery request to the base station At the same time, the terminal reports other better quality candidate beams to the base station so that both parties can switch to the candidate beam pair to continue communication, thereby avoiding communication interruption.
  • BLER block error rate
  • the beam recovery request in the existing beam recovery procedure is notified to the base station by the terminal through a dedicated physical layer random access channel (PRACH) resource.
  • PRACH physical layer random access channel
  • the PRACH resources are divided into multiple groups, and different resource groups have a binding relationship with beams. For example, resource group 1 corresponds to beam A, and resource group 2 corresponds to beam B.
  • resource group 1 corresponds to beam A
  • resource group 2 corresponds to beam B.
  • the embodiments of the present disclosure provide a beam recovery method, device, medium, and equipment, which are used to solve the problem of high system overhead of the existing beam recovery method.
  • the present disclosure provides a beam recovery method, the method includes:
  • Receive physical layer downlink control information DCI and if the DCI carries uplink grant UL grant information, report the second information in the physical layer uplink shared channel PUSCH scheduled by the DCI, and the second information is controlled by the media access layer
  • the unit MAC CE is carried, and the second information includes N reference signal index values, where N is a positive integer.
  • the present disclosure also provides a beam recovery method, the method includes:
  • the physical layer downlink control information DCI is sent to the terminal, and the DCI carries uplink grant UL grant information, instructing the terminal to report the second information;
  • the present disclosure also provides a beam recovery device, which includes:
  • the determination module is used to determine whether beam failure occurs
  • the sending module is configured to send first information on the physical layer uplink control channel PUCCH when the determining module determines that a beam failure occurs, the first information is used to notify the base station of the beam failure; and, if the receiving module receives
  • the received DCI carries uplink grant UL grant information, and then the second information is reported in the physical layer uplink shared channel PUSCH scheduled by the DCI.
  • the second information includes N reference signal index values, where N is positive Integer
  • the receiving module is used to receive the physical layer downlink control information DCI.
  • the present disclosure also provides a beam recovery device, which includes:
  • the receiving module is configured to receive the first information sent by the terminal through the physical layer uplink control channel PUCCH; and receive the second information reported by the terminal through the physical layer uplink shared channel PUSCH scheduled by the DCI, and the second information includes N Reference signal index value, where N is a positive integer;
  • the sending module is configured to send the physical layer downlink control information DCI to the terminal if the receiving module receives the first information sent by the terminal on the PUCCH.
  • the DCI carries uplink authorization UL grant information and instructs the terminal to report Second information.
  • the present disclosure also provides a non-volatile computer storage medium, the computer storage medium stores an executable program, and the executable program is executed by a processor to realize the steps of any of the above methods.
  • the present disclosure also provides a communication device, including a memory, a processor, a transceiver, and a bus interface; the processor is used to read a program in the memory and execute:
  • the transceiver determines whether a beam failure occurs; when it is determined that a beam failure occurs, first information is sent on the physical layer uplink control channel PUCCH through the transceiver, and the first information is used to notify the base station that the beam failure occurs; and through the transceiver Receive physical layer downlink control information DCI. If the DCI carries uplink grant UL grant information, the transceiver reports second information in the physical layer uplink shared channel PUSCH scheduled by the DCI, and the second information includes N reference signal index values, where N is a positive integer; or, execute:
  • the physical layer downlink control information DCI is sent to the terminal through the transceiver, and the DCI carries uplink authorization UL grant information , Instruct the terminal to report second information; and receive the second information reported by the terminal through the physical layer uplink shared channel PUSCH scheduled by the DCI through the transceiver, the second information includes N reference signal index values, where , N is a positive integer.
  • the terminal side when the terminal side determines that the base station side fails to send the beam, it sends the first information through the physical layer uplink control channel (PUCCH), and downlinks the physical layer after receiving the uplink grant (UL grant) information.
  • the second information is reported through the physical layer uplink shared channel (PUSCH) scheduled by the DCI.
  • the second information may include N reference signal index values, so that the base station can select alternatives based on the second information
  • the beam performs beam recovery.
  • PUSCH can send multiple reference signal index values at one time, even if the number of beams is large, it will not occupy a lot of resources, thereby effectively reducing resource overhead.
  • FIG. 1 is a schematic flowchart of a beam recovery method provided by Embodiment 1 of the disclosure
  • FIG. 2 is a schematic structural diagram of a beam recovery device provided in Embodiment 2 of the disclosure.
  • FIG. 3 is a schematic flowchart of a beam recovery method provided by Embodiment 3 of the disclosure.
  • FIG. 4 is a schematic structural diagram of a beam recovery device provided by Embodiment 4 of the disclosure.
  • FIG. 5 is a schematic structural diagram of a communication device provided by Embodiment 5 of the disclosure.
  • the first embodiment of the present disclosure provides a beam recovery method, which can be applied to the terminal side, and the step flow of the method may be as shown in FIG. 1, including:
  • Step 101 Determine whether beam failure occurs.
  • the terminal can determine whether a beam failure occurs, that is, determine whether the base station fails to send a beam to the terminal, and if it is determined that a beam failure occurs, it can continue to perform step 102.
  • the condition for the terminal to determine that the beam failure occurs may, but is not limited to: the reception quality of the reference signal of the beam sent by the base station to the terminal is less than the corresponding threshold.
  • the reception quality may include, but is not limited to, at least one of layer one signal to interference and noise ratio (L1-SINR), layer one reference signal received quality (L1-RSRQ), and layer one reference signal received power (L1-RSRP).
  • L1-SINR layer one signal to interference and noise ratio
  • L1-RSRQ layer one reference signal received quality
  • L1-RSRP layer one reference signal received power
  • reception quality includes at least two parameters, and the reception quality of the reference signal of the beam sent by the base station to the terminal is less than the corresponding threshold, it can be understood that each parameter is less than its corresponding threshold.
  • Step 102 Send the first information.
  • the terminal may send first information on the PUCCH, where the first information is used to notify the base station of the beam failure.
  • the PUCCH used to transmit the first information may be a dedicated PUCCH configured through high-layer signaling.
  • the PUCCH may be understood as only used to transmit the first information.
  • the PUCCH used to send the first information may also be the PUCCH used to transmit other uplink control information (eg, scheduling request (SR), hybrid automatic repeat request confirmation, etc.), that is, at this time, the PUCCH can be multiplexed, both It can be used to transmit other uplink control information, and can also be used to transmit first information.
  • other uplink control information eg, scheduling request (SR), hybrid automatic repeat request confirmation, etc.
  • PUCCH When PUCCH is used to transmit other uplink control information, in order to ensure that the base station side can accurately distinguish whether the PUCCH carries other uplink control information or the first information, in a possible implementation, when PUCCH transmits other uplink control information A different PUCCH format can be used when transmitting the first information. In this way, the base station side can distinguish whether the PUCCH transmits other uplink control information or the first information according to the PUCCH format.
  • the PUCCH when the PUCCH is a PUCCH used to transmit other uplink control information, the PUCCH may use the same PUCCH format when transmitting the other uplink control information and when transmitting the first information, but The corresponding sequence generation parameters and/or the corresponding modulation symbols may be different. In this way, the base station side can distinguish whether the PUCCH transmits other uplink control information or the first information according to the corresponding sequence generation parameters and/or the corresponding modulation symbols.
  • the PUCCH when the PUCCH transmits other uplink control information and when transmitting the first information, both adopt the format of a cyclic shift sequence, but the corresponding sequence generation parameters are different.
  • the modulation symbol multiplied by the sequence format is adopted.
  • the modulation symbol uses the information "0"
  • PUCCH transmits first information uses the information "1".
  • the base station side can distinguish whether the PUCCH transmits other uplink control information or the first information according to the difference of the modulation symbols.
  • the base station can use the modulation symbol
  • the difference from the sequence generation parameter is to distinguish whether the PUCCH transmits other uplink control information or the first information.
  • the base station side can also use PUCCH related information to determine the serving cell corresponding to the beam failure, and then beam recovery can be performed according to the serving cell corresponding to the beam failure.
  • the PUCCH resource may be determined according to a serving cell index value corresponding to a beam failure. That is, the corresponding relationship between the serving cell and the PUCCH resource can be established, the corresponding PUCCH resource is determined according to the serving cell corresponding to the beam failure, and the first information is sent through the PUCCH resource, so that the base station side can determine according to the difference of PUCCH resources Which serving cell has the beam failure.
  • the PUCCH resources corresponding to each serving cell may be orthogonal PUCCH resources.
  • the sequence generation parameter and/or the corresponding modulation symbol used when sending the first information on the PUCCH may be determined according to the serving cell index value corresponding to the beam failure. That is, the corresponding relationship between the serving cell, sequence generation parameter and/or modulation symbol can be established, and the corresponding sequence generation parameter and/or corresponding modulation symbol can be determined according to the serving cell corresponding to the beam failure.
  • the PUCCH can be based on the corresponding sequence
  • the parameters and/or corresponding modulation symbols are generated to send the first information, so that the base station side generates the parameters and/or corresponding modulation symbols according to the corresponding sequence to determine which serving cell has beam failure.
  • the PUCCH resource corresponding to each serving cell may be the same PUCCH resource, and the first information may be sent through different sequence generation parameters.
  • the corresponding sequence generation parameter may have a corresponding relationship with the serving cell index value. In this way, when the base station side receives the first information, it can determine which serving cell has beam failure based on the difference in sequence generation parameters.
  • Step 103 Receive DCI.
  • the terminal After the terminal sends the first information on the PUCCH, it can receive the DCI. If the received DCI carries UL grant information, it can continue to perform step 104.
  • Step 104 Report the second information.
  • the second information may be reported in the PUSCH scheduled by the DCI, and the second information includes N reference signal index values, where N is a positive integer .
  • Each reference signal index value may be understood as corresponding to a candidate beam
  • the second information may be understood as used to instruct the base station to select the candidate beam for beam recovery according to the second information.
  • N can be configured or predefined by the network side (base station side).
  • the reference signal index value may be an index value of a channel state information reference signal (CSI-RS), or may also be an index value of a synchronization signal block (SS/PBCH block, SSB).
  • CSI-RS channel state information reference signal
  • SS/PBCH block SS/PBCH block
  • the reference signal index value may also be another reference signal index value that can be used to identify candidate beams.
  • the second information may also include the reception quality of the N reference signals corresponding to the N reference signal index values, so that the base station side can be based on the N reference signal index values.
  • the reference signal index value and the reception quality of the corresponding N reference signals candidate beams are selected for beam recovery, the quality of the selected candidate beams is improved, and the success rate of beam recovery is guaranteed.
  • the reception quality may include, but is not limited to, at least one of layer one signal to interference and noise ratio (L1-SINR), layer one reference signal received quality (L1-RSRQ), and layer one reference signal received power (L1-RSRP).
  • L1-SINR layer one signal to interference and noise ratio
  • L1-RSRQ layer one reference signal received quality
  • L1-RSRP layer one reference signal received power
  • the second information may be carried by a medium access layer control unit (MAC CE).
  • MAC CE medium access layer control unit
  • this embodiment may also include the following steps:
  • Step 105 Monitor the physical layer downlink control channel (PDCCH).
  • PDCH physical layer downlink control channel
  • the terminal can monitor the PDCCH. If the PDCCH is not monitored within the set duration threshold, it can be considered that the beam recovery failed this time, and step 106 can be continued. If the PDCCH is monitored within the set duration threshold, it can be considered that the beam recovery is successful this time.
  • the nth slot after the second information is sent on the PUSCH, where n is a non-negative integer, monitoring temporary identifier (C-RNTI) or modulation and decoding strategy Temporary identifier (MCS-C-RNTI) scrambled PDCCH.
  • C-RNTI monitoring temporary identifier
  • MCS-C-RNTI modulation and decoding strategy
  • the terminal can receive the downlink information sent by the network side, and according to the downlink information, monitor the PDCCH according to the quasi co-location relationship between the antenna port and the reference signal in the reported second information.
  • monitoring the PDCCH may include but is not limited to:
  • the PDCCH is monitored according to the quasi co-location relationship of the reference signal corresponding to the reference signal index value in the second information.
  • N is a positive integer not less than 2, it can be understood that when the second information corresponds to multiple candidate beams, the PDCCH is monitored, which may include but is not limited to:
  • the PDCCH is monitored sequentially according to the quasi co-location relationship of the reference signals corresponding to the index value of the reference signal from the first to the Nth in the second information, until the set duration threshold is reached or the PDCCH is monitored.
  • the PDCCH is not monitored within the set sub-time length (for example, s slots, where the s is a positive integer), then the PDCCH and the reference corresponding to the second reference signal index value in the second information are followed For the quasi co-location relationship of the signal, the PDCCH is monitored, and so on, until the set duration threshold is reached or the PDCCH is monitored.
  • the set sub-time length for example, s slots, where the s is a positive integer
  • duration threshold T may be configured or predefined by the network side.
  • the set sub-time duration can also be configured or predefined by the network side.
  • the terminal monitors the PDCCH, it can continue to monitor the PDCCH according to the quasi co-location relationship between the antenna port and the reference signal in the reported second information, until the network side configures a new quasi co-location for downlink transmission relationship.
  • Step 106 Continue beam recovery.
  • the beam recovery can be continued according to the related technology again.
  • the beam recovery request can be sent through the physical layer random access channel (PRACH).
  • PRACH physical layer random access channel
  • the PRACH binding to a candidate beam can be understood as binding the sequence sent on the PRACH and/or the physical time-frequency resource used with a reference signal index value.
  • the second embodiment of the present disclosure provides a beam recovery device, which may be integrated in a terminal.
  • the structure of the device may be as shown in FIG. 2 and includes:
  • the determining module 11 is used to determine whether beam failure occurs
  • the sending module 12 is configured to send first information on the physical layer uplink control channel PUCCH when the determining module determines that a beam failure occurs, and the first information is used to notify the base station of the beam failure; and, if the receiving module receives
  • the received DCI carries uplink grant UL grant information, and then the second information is reported in the physical layer uplink shared channel PUSCH scheduled by the DCI.
  • the second information includes N reference signal index values, where N is positive Integer
  • the receiving module 13 is configured to receive physical layer downlink control information DCI.
  • the device may further include a monitoring module 14:
  • the monitoring module 14 is used for monitoring the physical layer downlink control channel PDCCH; if the PDCCH is not monitored within the set duration threshold, it is considered that the beam recovery fails this time.
  • the monitoring module 14 may also be configured to not monitor the PDCCH within a set duration threshold, and when it is considered that the beam recovery has failed this time, trigger the transmission of a beam recovery request via PRACH. Bind to an alternative beam.
  • the monitoring module 14 may be specifically configured to monitor the PDCCH according to the quasi co-location relationship of the reference signal corresponding to the reference signal index value in the second information.
  • the monitoring module 14 may be specifically configured to sequentially follow the quasi co-location of the reference signal corresponding to the index value of the reference signal from the first to the Nth in the second information. The relationship monitors the PDCCH until the set duration threshold is reached or the PDCCH is monitored.
  • the third embodiment of the present disclosure provides a beam recovery method, which can be applied to the base station side.
  • the step flow of the method may be as shown in FIG. 3, including:
  • Step 201 Receive first information.
  • the base station can receive the first information sent by the terminal through the PUCCH.
  • the first information is used to notify the base station that a beam failure occurs.
  • Step 202 Send DCI.
  • the base station may send DCI to the terminal that sends the first information, where the DCI carries UL grant information and instructs the terminal to report the second information.
  • Step 203 Receive second information.
  • the base station may receive the second information reported by the terminal through the PUSCH scheduled by the DCI, and the second information may include N reference signal index values, where N is a positive integer.
  • Step 204 Perform beam recovery.
  • the base station may select candidate beams for beam recovery according to the received second information.
  • the candidate beams can be selected for beam recovery according to the N reference signal index values in the second information.
  • the N reference signals in the second information may be Signal index value and the reception quality of the N reference signals corresponding to the N reference signal index values, and the candidate beam is selected for beam recovery.
  • the fourth embodiment of the present disclosure provides a beam recovery device, which may be integrated in a base station, and the structure of the device may be as shown in FIG. 4, including:
  • the receiving module 21 is configured to receive the first information sent by the terminal through the physical layer uplink control channel PUCCH; and receive the second information reported by the terminal through the physical layer uplink shared channel PUSCH scheduled by the DCI, the second information including N references Signal index value, where N is a positive integer.
  • the sending module 22 is configured to, if the receiving module receives the first information sent by the terminal through the PUCCH, send physical layer downlink control information DCI to the terminal, where the DCI carries uplink grant UL grant information and instructs the terminal to report the first information Two information.
  • the device may further include a recovery module 13:
  • the restoration module 13 is configured to select candidate beams for beam restoration according to the second information.
  • the second information may also include the reception quality of the N reference signals corresponding to the N reference signal index values.
  • the embodiments of the present disclosure provide the following devices and media.
  • the fifth embodiment of the present disclosure provides a communication device.
  • the structure of the device may be as shown in FIG. 5, including a memory 31, a processor 32, a transceiver 33, and a bus interface; the processor 32 is configured to read data from the memory 31
  • the program executes:
  • the device 33 receives the physical layer downlink control information DCI. If the DCI carries uplink grant UL grant information, the transceiver 33 reports the second information in the physical layer uplink shared channel PUSCH scheduled by the DCI.
  • the second information includes N reference signal index values, where N is a positive integer; or, execute:
  • the physical layer downlink control information DCI is sent to the terminal through the transceiver 33, and the DCI carries the uplink authorization UL grant information, instructing the terminal to report second information; and receiving through the transceiver 33 the second information reported by the terminal through the physical layer uplink shared channel PUSCH scheduled by the DCI, the second information including N reference signal indexes Value, where N is a positive integer.
  • the processor 32 may specifically include a central processing unit (CPU), an Application Specific Integrated Circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be The hardware circuit developed by Field Programmable Gate Array (FPGA) can be a baseband processor.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the processor 32 may include at least one processing core.
  • the memory 31 may include a read only memory (Read Only Memory, ROM), a random access memory (Random Access Memory, RAM), and a disk memory.
  • the memory 31 is used to store data required by at least one processor 32 during operation.
  • the number of memories 31 may be one or more.
  • the sixth embodiment of the present disclosure provides a nonvolatile computer storage medium that stores an executable program, and when the executable program is executed by a processor, the method provided in the first or third embodiment of the present disclosure is implemented.
  • computer storage media may include: Universal Serial Bus flash drive (USB), mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other storage media that can store program codes.
  • USB Universal Serial Bus flash drive
  • ROM read-only memory
  • RAM Random Access Memory
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit or unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be The combination can either be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical or other forms.
  • the functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may also be an independent physical module.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the computer software product is stored in a storage medium and includes several instructions to enable a computer device, for example, A personal computer, a server, or a network device, etc., or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the foregoing storage media include: universal serial bus flash disk (universal serial bus flash drive), mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
  • the embodiments of the present disclosure can be provided as methods, systems, or computer program products. Therefore, the present disclosure may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • each flow and/or block in the flowchart and/or block diagram and a combination of the flow and/or block in the flowchart and/or block diagram may be implemented by computer program instructions.
  • These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated
  • a device that implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions may also be stored in a computer readable memory that can guide a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, the instructions
  • the device implements the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and/or block diagrams.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operating steps are performed on the computer or other programmable device to generate computer-implemented processing, which is executed on the computer or other programmable device
  • the instructions provide steps for implementing the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and/or block diagrams.

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Abstract

本公开涉及无线技术领域，特别涉及一种波束恢复方法、装置、介质和设备。根据本公开实施例提供的方法，终端侧在确定基站侧发送波束失败时，通过PUCCH发送第一信息，并在接收到携带上行授权信息的DCI时，通过DCI调度的PUSCH上报第二信息，第二信息中可以包括N个参考信号索引值。

Description

波束恢复方法、装置、介质和设备
相关申请的交叉引用
本申请主张在2019年1月17日在中国提交的中国专利申请号No.201910045142.2的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及无线技术领域，特别涉及一种波束恢复方法、装置、介质和设备。
背景技术
在频谱资源日益紧缺的环境下，为了满足第五代移动通信系统(5G)的要求，高频段频谱资源将被更多地使用。同时，为了保证覆盖范围，可采用模拟波束赋形技术，使终端与基站选择最优波束对进行通信。高频段频谱资源丰富，但其无线电传播抗衰减能力弱，并且存在较严重的阻塞(Blockage)现象，墙体、树木、甚至周围移动的人都可引起信号的中断，难以实现连续覆盖。因此，当终端判断当前与基站通信的波束对通信链路质量较差(如，块差错率(BLER)高于门限值)时，需通知基站发送波束失败，即可以向基站发送波束恢复请求，同时，终端将其他质量较好的备选波束上报给基站，以便双方切换至备选波束对继续通信，从而避免通信中断，以上过程称为波束恢复。
现有波束恢复流程中的波束恢复请求是终端通过专属的物理层随机接入信道(PRACH)资源通知基站的。其中PRACH资源被划分为多个组，不同资源组与波束存在绑定关系，如资源组1对应波束A，资源组2对应波束B。基站收到终端发送的波束恢复请求后，与终端所用的PRACH资源绑定的波束即为备选波束。
综上所述，相关技术方案需要专属的PRACH资源发送波束恢复请求，如果波束数量较多，则需要分别与数量较多的PRACH资源组绑定，资源开销较大。
发明内容
本公开实施例提供一种波束恢复方法、装置、介质和设备，用于解决现有波束恢复方法系统开销较大的问题。
本公开提供一种波束恢复方法，所述方法包括：
确定是否发生波束失败；
在确定发生波束失败时，在物理层上行控制信道PUCCH上发送第一信息，所述第一信息用于通知基站发生波束失败；
接收物理层下行控制信息DCI，若所述DCI中携带上行授权UL grant信息，则在所述DCI调度的物理层上行共享信道PUSCH中上报第二信息，所述第二信息通过媒体接入层控制单元MAC CE承载，所述第二信息包括N个参考信号索引值，其中，N为正整数。
本公开还提供了一种波束恢复方法，所述方法包括：
若接收到终端通过物理层上行控制信道PUCCH上发送的第一信息，向所述终端发送物理层下行控制信息DCI，所述DCI中携带上行授权UL grant信息，指示所述终端上报第二信息；
接收终端通过所述DCI调度的物理层上行共享信道PUSCH上报的第二信息，所述第二信息包括N个参考信号索引值，其中，N为正整数。
本公开还提供了一种波束恢复装置，所述装置包括：
确定模块，用于确定是否发生波束失败；
发送模块，用于在所述确定模块确定发生波束失败时，在物理层上行控制信道PUCCH上发送第一信息，所述第一信息用于通知基站发生波束失败；以及，若所述接收模块接收到的所述DCI中携带上行授权UL grant信息，则在所述DCI调度的物理层上行共享信道PUSCH中上报第二信息，所述第二信息包括N个参考信号索引值，其中，N为正整数；
接收模块，用于接收物理层下行控制信息DCI。
本公开还提供了一种波束恢复装置，所述装置包括：
接收模块，用于接收终端通过物理层上行控制信道PUCCH上发送的第一信息；并接收终端通过所述DCI调度的物理层上行共享信道PUSCH上报的第二信息，所述第二信息包括N个参考信号索引值，其中，N为正整数；
发送模块，用于若所述接收模块接收到终端通过PUCCH上发送的第一信息，向所述终端发送物理层下行控制信息DCI，所述DCI中携带上行授权UL grant信息，指示所述终端上报第二信息。
本公开还提供了一种非易失性计算机存储介质，所述计算机存储介质存储有可执行程序，该可执行程序被处理器执行实现任一如上所述方法的步骤。
本公开还提供了一种通信设备，包括存储器、处理器、收发器以及总线接口；所述处理器，用于读取存储器中的程序，执行：
确定是否发生波束失败；在确定发生波束失败时，通过所述收发器在物理层上行控制信道PUCCH上发送第一信息，所述第一信息用于通知基站发生波束失败；以及通过所述收发器接收物理层下行控制信息DCI，若所述DCI中携带上行授权UL grant信息，则通过所述收发器在所述DCI调度的物理层上行共享信道PUSCH中上报第二信息，所述第二信息包括N个参考信号索引值，其中，N为正整数；或者，执行：
若通过所述收发器接收到终端通过物理层上行控制信道PUCCH上发送的第一信息，通过所述收发器向所述终端发送物理层下行控制信息DCI，所述DCI中携带上行授权UL grant信息，指示所述终端上报第二信息；并通过所述收发器接收终端通过所述DCI调度的物理层上行共享信道PUSCH上报的第二信息，所述第二信息包括N个参考信号索引值，其中，N为正整数。
根据本公开实施例提供的方法，终端侧在确定基站侧发送波束失败时，通过物理层上行控制信道(PUCCH)发送第一信息，并在接收到携带上行授权(UL grant)信息的物理层下行控制信息(DCI)时，通过所述DCI调度的物理层上行共享信道(PUSCH)上报第二信息，第二信息中可以包括N个参考信号索引值，使得基站侧可以根据第二信息选择备选波束进行波束恢复。PUSCH一次可以发送多个参考信号索引值，即使波束数量较多，也不会占用大量资源，从而可以有效减少资源开销。
本公开的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本公开而了解。本公开的目的和其他优点可通过在所写的说明书、权利要求书、以及附图中所特别指出的结构来实现和获得。
附图说明
图1为本公开实施例一提供的波束恢复方法的流程示意图；
图2为本公开实施例二提供的波束恢复装置的结构示意图；
图3为本公开实施例三提供的波束恢复方法的流程示意图；
图4为本公开实施例四提供的波束恢复装置的结构示意图；
图5为本公开实施例五提供的通信设备的结构示意图。
具体实施方式
为了使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开作进一步地详细描述，显然，所描述的实施例仅仅是本公开的一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
需要说明的是，在本文中提及的“多个或者若干个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本公开的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本公开的实施例能够以除了在这里图示或描述的那些以外的顺序实施。
此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
实施例一
本公开实施例一提供一种波束恢复方法，该方法可以应用于终端侧，该方法的步骤流程可以如图1所示，包括：
步骤101、确定是否发生波束失败。
在本步骤中，终端可以判断是否发生波束失败，即确定基站向终端发送波束是否失败，如果确定发生波束失败，则可以继续执行步骤102。
终端确定发生波束失败的条件可以但不限于为：基站向终端发送的波束的参考信号的接收质量小于对应的门限。
所述接收质量可以但不限于包括层一信干噪比(L1-SINR)，层一参考信号接收质量(L1-RSRQ)，层一参考信号接收功率(L1-RSRP)中的至少一种。
如果所述接收质量包括至少两个参数，基站向终端发送的波束的参考信号的接收质量小于对应的门限，可以理解为每个参数均小于其对应的门限。
步骤102、发送第一信息。
在本步骤中，如果终端确定发生波束失败，可以在PUCCH上发送第一信息，所述第一信息用于通知基站发生波束失败。
用于发送第一信息的PUCCH可以是通过高层信令配置的专属PUCCH，此时，所述PUCCH可以理解为只用于传输第一信息。
用于发送第一信息的PUCCH还可以是用于传输其他上行控制信息(如，调度请求(SR)、混合自动重传请求确认等)的PUCCH，即此时，所述PUCCH可以复用，既可以用于传输其他上行控制信息，也可以用于传输第一信息。
PUCCH是用于传输其他上行控制信息时，为了保证基站侧可以准确区分PUCCH到底是承载了其他上行控制信息还是承载了第一信息，在一种可能的实现方式中，PUCCH传输其他上行控制信息时与传输第一信息时可以采用不同的PUCCH格式。这样，基站侧根据PUCCH格式即可以区分出PUCCH传输的是其他上行控制信息还是第一信息。
在另一种可能的实现方式中，PUCCH是用于传输其他上行控制信息的PUCCH时，所述PUCCH传输所述其他上行控制信息时与传输所述第一信息时可以采用相同的PUCCH格式，但对应的序列生成参数和/或对应的调制符号可以不同。这样，基站侧根据对应的序列生成参数和/或对应的调制符号即可以区分出PUCCH传输的是其他上行控制信息还是第一信息。
例如，PUCCH传输其他上行控制信息时与传输第一信息时都采用循环移位序列的格式，但对应的序列生成参数不同。
又如，PUCCH传输其他上行控制信息时与传输第一信息时都采用调制符号乘以序列的格式，当PUCCH传输其他上行控制信息时，调制符号采用信息“0”，当PUCCH传输第一信息时，调制符号采用信息“1”。这样，基站侧根据调制符号的区别，即可以区分出PUCCH传输的是其他上行控制信息还是第一信息。
当然，PUCCH传输其他上行控制信息时与传输第一信息时都采用调制符号乘以序列的格式时，对应的序列生成参数和对应的调制符号可以均不相同，此时，基站侧可以根据调制符号和序列生成参数的区别，区分PUCCH传输的是其他上行控制信息还是第一信息。
此外需要说明的是，如果终端有多个服务小区，基站侧还可以通过PUCCH相关的信息来确定发生波束失败所对应的服务小区，进而后续可以根据发生波束失败所对应的服务小区进行波束恢复。
在一种可能的实现方式中，所述PUCCH资源可以根据发生波束失败所对应的服务小区索引值确定。即，可以建立服务小区和PUCCH资源的对应关系，根据发生波束失败所对应的服务小区确定对应的PUCCH资源，通过该PUCCH资源来发送第一信息，这样基站侧根据PUCCH资源的不同，即可以确定出是哪个服务小区发生波束失败。
需要进一步说明的是，在一种可能的实现方式中，各服务小区对应的PUCCH资源可以为正交的PUCCH资源。
在另一种可能的实现方式中，在所述PUCCH上发送第一信息时使用的序列生成参数和/或对应的调制符号可以根据发生波束失败所对应的服务小区索引值确定。即，可以建立服务小区、序列生成参数和/或调制符号之间的对应关系，根据发生波束失败所对应的服务小区确定对应的序列生成参数和/或对应的调制符号，PUCCH可以根据对应的序列生成参数和/或对应的调制符号来发送第一信息，这样基站侧根据对应的序列生成参数和/或对应的调制符号，即可以确定出是哪个服务小区发生波束失败。
例如，各服务小区对应的PUCCH资源可以为相同的PUCCH资源，可以通过不同的序列生成参数来发送第一信息。具体的，如使用循环移位序列发送第一信息时，对应的序列生成参数可以与服务小区索引值存在对应关系。 这样，基站侧在接收到第一信息时，根据序列生成参数的不同，即可以确定出是哪个服务小区发生波束失败。
步骤103、接收DCI。
终端在PUCCH上发送第一信息之后，可以接收DCI，如果接收到的DCI中携带UL grant信息，则可以继续执行步骤104。
步骤104、上报第二信息。
如果接收到的DCI中携带UL grant信息，则在本步骤中，可以在所述DCI调度的PUSCH中上报第二信息，所述第二信息包括N个参考信号索引值，其中，N为正整数。
每个参考信号索引值可以理解为对应一个备选波束，所述第二信息可以理解为用于指示基站根据所述第二信息选择备选波束进行波束恢复。其中，N可以由网络侧(基站侧)配置或预定义。
在一种可能的实现方式中，所述参考信号索引值可以为信道状态信息参考信号(CSI-RS)的索引值，或者也可以为同步信号块(SS/PBCH block,SSB)的索引值。当然，所述参考信号索引值还可以为其它可以用于识别备选波束的参考信号的索引值。
进一步的，所述第二信息中除了可以包括N个参考信号索引值之外，还可以包括所述N个参考信号索引值对应的N个参考信号的接收质量，从而使得基站侧可以根据N个参考信号索引值，以及对应的N个参考信号的接收质量，选择备选波束进行波束恢复，提高选择出的备选波束质量，保证波束恢复的成功率。
所述接收质量可以但不限于包括层一信干噪比(L1-SINR)，层一参考信号接收质量(L1-RSRQ)，层一参考信号接收功率(L1-RSRP)中的至少一种。
需要说明的是，在一种可能的实现方式中，所述第二信息可以通过媒体接入层控制单元(MAC CE)承载。
进一步的，本实施例还可以包括以下步骤：
步骤105、监听物理层下行控制信道(PDCCH)。
在本步骤中，终端可以监听PDCCH。如果在设定的时长阈值内没有监听到所述PDCCH，则可以认为本次波束恢复失败，并可以继续执行步骤106。 如果在设定的时长阈值内监听到所述PDCCH，则可以认为本次波束恢复成功。
在一种可能的实现方式中，可以在PUSCH上发送第二信息之后的第n个时隙(slot)，所述n为非负整数，监听临时标识符(C-RNTI)或调制与解码策略临时标识符(MCS-C-RNTI)加扰的PDCCH。
可以理解为，在本步骤中，终端可以接收网络侧发送的下行信息，并根据该下行信息，按照天线端口与上报的第二信息中的参考信号的准共址关系，来监听PDCCH。
所述N为1时，可以理解为第二信息对应一个备选波束时，监听PDCCH，可以但不限于包括：
按照与所述第二信息中参考信号索引值对应的参考信号的准共址关系监听PDCCH。
所述N为不小于2的正整数时，可以理解为第二信息对应多个备选波束时，监听PDCCH，可以但不限于包括：
依次按照与所述第二信息中从第一个到第N个参考信号索引值对应的参考信号的准共址关系监听PDCCH，直至到达设定的时长阈值或者监听到所述PDCCH。
即可以理解为：
按照与所述第二信息中第一个参考信号索引值对应的备选波束的参考信号的准共址关系监听PDCCH；
若在设定子时长(例如，s个slot，所述s为正整数)内没有监听到所述PDCCH，则按照所述PDCCH与所述第二信息中第二个参考信号索引值对应的参考信号的准共址关系，监听所述PDCCH，以此类推，直至到达设定的时长阈值或者监听到所述PDCCH。
需要说明的是，所述时长阈值T可以由网络侧配置或预定义。所述设定子时长也可以由网络侧配置或预定义。
当然，如果终端监听到所述PDCCH，则可以按照天线端口与上报的第二信息中的参考信号的准共址关系，继续监听PDCCH，直至网络侧配置了新的用于下行传输的准共址关系。
步骤106、继续进行波束恢复。
如果认为通过PUSCH发送第二信息进行波束恢复没有成功，那么还可以重新按照相关技术的方式继续进行波束恢复，例如，可以通过物理层随机接入信道(PRACH)发送波束恢复请求，该PRACH与一个备选波束绑定。
PRACH与一个备选波束绑定，可以理解为，在PRACH上发送的序列和/或使用的物理时频资源与一个参考信号索引值绑定。
与实施例一提供的方法对应的，提供以下的装置。
实施例二
本公开实施例二提供一种波束恢复装置，该装置可以集成在终端，该装置的结构可以如图2所示，包括：
确定模块11用于确定是否发生波束失败；
发送模块12用于在所述确定模块确定发生波束失败时，在物理层上行控制信道PUCCH上发送第一信息，所述第一信息用于通知基站发生波束失败；以及，若所述接收模块接收到的所述DCI中携带上行授权UL grant信息，则在所述DCI调度的物理层上行共享信道PUSCH中上报第二信息，所述第二信息包括N个参考信号索引值，其中，N为正整数；
接收模块13用于接收物理层下行控制信息DCI。
所述装置还可以进一步包括监听模块14：
所述监听模块14用于监听物理层下行控制信道PDCCH；若在设定的时长阈值内没有监听到所述PDCCH，则认为本次波束恢复失败。
在一种可能的实现方式中，所述监听模块14还可以用于在设定的时长阈值内没有监听到所述PDCCH，认为本次波束恢复失败时，触发通过PRACH发送波束恢复请求，该PRACH与一个备选波束绑定。
所述N为1时，所述监听模块14可以具体用于按照与所述第二信息中参考信号索引值对应的参考信号的准共址关系监听PDCCH。
所述N为不小于2的正整数时，所述监听模块14可以具体用于依次按照与所述第二信息中从第一个到第N个参考信号索引值对应的参考信号的准共址关系监听PDCCH，直至到达设定的时长阈值或者监听到所述PDCCH。
与本公开实施例一提供的方法对应的，提供以下方法。
实施例三
本公开实施例三提供一种波束恢复方法，该方法可以应用于基站侧，该方法的步骤流程可以如图3所示，包括：
步骤201、接收第一信息。
在本步骤中，基站可以接收终端通过PUCCH发送的第一信息。所述第一信息用于通知基站发生波束失败。
步骤202、发送DCI。
在本步骤中，基站在接收到第一信息之后，可以向发送第一信息的终端发送DCI，所述DCI中携带UL grant信息，指示所述终端上报第二信息。
步骤203、接收第二信息。
在本步骤中，基站可以接收终端通过所述DCI调度的PUSCH上报的第二信息，所述第二信息可以包括N个参考信号索引值，其中，N为正整数。
步骤204、进行波束恢复。
进一步的，在本步骤中，基站可以根据接收到的第二信息选择备选波束进行波束恢复。
如果第二信息中包括N个备选波束对应的N个参考信号索引值，那么在本步骤中，可以根据所述第二信息中的N个参考信号索引值，选择备选波束进行波束恢复。
需要说明的是，如果所述第二信息还包括所述N个参考信号索引值对应的N个参考信号的接收质量，那么，在本步骤中，可以根据所述第二信息中的N个参考信号索引值，以及所述N个参考信号索引值对应的N个参考信号的接收质量，选择备选波束进行波束恢复。
与实施例三提供的方法对应的，提供以下的装置。
实施例四
本公开实施例四提供一种波束恢复装置，该装置可以集成在基站，该装置的结构可以如图4所示，包括：
接收模块21用于接收终端通过物理层上行控制信道PUCCH发送的第一信息；并接收终端通过所述DCI调度的物理层上行共享信道PUSCH上报的第二信息，所述第二信息包括N个参考信号索引值，其中，N为正整数。
发送模块22用于若所述接收模块接收到终端通过PUCCH发送的第一信 息，向所述终端发送物理层下行控制信息DCI，所述DCI中携带上行授权UL grant信息，指示所述终端上报第二信息。
所述装置还可以进一步包括恢复模块13：
所述恢复模块13用于根据所述第二信息选择备选波束进行波束恢复。
所述第二信息还可以包括所述N个参考信号索引值对应的N个参考信号的接收质量。
基于同一发明构思，本公开实施例提供以下的设备和介质。
实施例五
本公开实施例五提供一种通信设备，该设备的结构可以如图5所示，包括存储器31、处理器32、收发器33以及总线接口；所述处理器32，用于读取存储器31中的程序，执行：
确定是否发生波束失败；在确定发生波束失败时，通过所述收发器33在物理层上行控制信道PUCCH上发送第一信息，所述第一信息用于通知基站发生波束失败；以及通过所述收发器33接收物理层下行控制信息DCI，若所述DCI中携带上行授权UL grant信息，则通过所述收发器33在所述DCI调度的物理层上行共享信道PUSCH中上报第二信息，所述第二信息包括N个参考信号索引值，其中，N为正整数；或者，执行：
若通过所述收发器33接收到终端通过物理层上行控制信道PUCCH上发送的第一信息，通过所述收发器33向所述终端发送物理层下行控制信息DCI，所述DCI中携带上行授权UL grant信息，指示所述终端上报第二信息；并通过所述收发器33接收终端通过所述DCI调度的物理层上行共享信道PUSCH上报的第二信息，所述第二信息包括N个参考信号索引值，其中，N为正整数。
可选的，所述处理器32具体可以包括中央处理器(CPU)、特定应用集成电路(Application Specific Integrated Circuit,ASIC)，可以是一个或多个用于控制程序执行的集成电路，可以是使用现场可编程门阵列(Field Programmable Gate Array,FPGA)开发的硬件电路，可以是基带处理器。
可选的，所述处理器32可以包括至少一个处理核心。
可选的，所述存储器31可以包括只读存储器(Read Only Memory,ROM)、 随机存取存储器(Random Access Memory,RAM)和磁盘存储器。存储器31用于存储至少一个处理器32运行时所需的数据。存储器31的数量可以为一个或多个。
本公开实施例六提供一种非易失性计算机存储介质，所述计算机存储介质存储有可执行程序，当可执行程序被处理器执行时，实现本公开实施例一或三提供的方法。
在具体的实施过程中，计算机存储介质可以包括：通用串行总线闪存盘(Universal Serial Bus flash drive,USB)、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的存储介质。
在本公开实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。例如，以上所描述的设备实施例仅仅是示意性的，例如，所述单元或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性或其它的形式。
在本公开实施例中的各功能单元可以集成在一个处理单元中，或者各个单元也可以均是独立的物理模块。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开实施例的技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备，例如可以是个人计算机，服务器，或者网络设备等，或处理器(processor)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：通用串行总线闪存盘(universal serial bus flash drive)、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、 或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、装置(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本公开的可选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括可选实施例以及落入本公开范围的所有变更和修改。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (20)

  1. 一种波束恢复方法，包括：
    确定是否发生波束失败；
    在确定发生波束失败时，在物理层上行控制信道PUCCH上发送第一信息，所述第一信息用于通知基站发生波束失败；
    接收物理层下行控制信息DCI，若所述DCI中携带上行授权UL grant信息，则在所述DCI调度的物理层上行共享信道PUSCH中上报第二信息，所述第二信息通过媒体接入层控制单元MAC CE承载，所述第二信息包括N个参考信号索引值，其中，N为整数。
  2. 如权利要求1所述的方法，其中，所述参考信号索引值为信道状态信息参考信号CSI-RS的索引值，或者为同步信号块SSB的索引值。
  3. 如权利要求1所述的方法，其中，所述第二信息中还包括所述N个参考信号索引值对应的N个参考信号的接收质量。
  4. 如权利要求1所述的方法，其中，所述PUCCH是通过高层信令配置的专属PUCCH，或者是用于传输其他上行控制信息的PUCCH。
  5. 如权利要求4所述的方法，其中，所述PUCCH是用于传输其他上行控制信息的PUCCH时，所述PUCCH传输其他上行控制信息时与传输所述第一信息时采用不同的PUCCH格式。
  6. 如权利要求4所述的方法，其中，所述PUCCH是用于传输其他上行控制信息的PUCCH时，所述PUCCH传输其他上行控制信息时与传输所述第一信息时采用相同的PUCCH格式，但对应的序列生成参数和/或对应的调制符号不同。
  7. 如权利要求1所述的方法，其中，所述PUCCH资源根据发生波束失败所对应的服务小区索引值确定。
  8. 如权利要求1所述的方法，其中，在所述PUCCH上发送第一信息时使用的序列生成参数和/或对应的调制符号根据发生波束失败所对应的服务小区索引值确定。
  9. 如权利要求1～8任一所述的方法，其中，在所述DCI调度的PUSCH 中上报第二信息之后，所述方法还包括：
    监听物理层下行控制信道PDCCH；
    若在设定的时长阈值内没有监听到所述PDCCH，则认为本次波束恢复失败。
  10. 如权利要求9所述的方法，其中，若认为本次波束恢复失败，所述方法还包括：
    通过物理层随机接入信道PRACH发送波束恢复请求，该PRACH与一个备选波束绑定。
  11. 如权利要求9所述的方法，其中，所述N为1时，监听PDCCH，包括：
    按照与所述第二信息中参考信号索引值对应的参考信号的准共址关系监听PDCCH。
  12. 如权利要求9所述的方法，其中，所述N为不小于2的正整数时，监听所述PDCCH，包括：
    依次按照与所述第二信息中从第一个到第N个参考信号索引值对应的参考信号的准共址关系监听PDCCH，直至到达设定的时长阈值或者监听到所述PDCCH。
  13. 一种波束恢复方法，包括：
    若接收到终端通过物理层上行控制信道PUCCH发送的第一信息，向所述终端发送物理层下行控制信息DCI，所述DCI中携带上行授权UL grant信息，指示所述终端上报第二信息；
    接收终端通过所述DCI调度的物理层上行共享信道PUSCH上报的第二信息，所述第二信息包括N个参考信号索引值，其中，N为整数。
  14. 如权利要求13所述的方法，还包括：
    根据所述第二信息选择备选波束进行波束恢复。
  15. 如权利要求13或14所述的方法，其中，所述第二信息还包括所述N个参考信号索引值对应的N个参考信号的接收质量。
  16. 一种波束恢复装置，包括：
    确定模块，用于确定是否发生波束失败；
    发送模块，用于在所述确定模块确定发生波束失败时，在物理层上行控制信道PUCCH上发送第一信息，所述第一信息用于通知基站发生波束失败；以及，若所述接收模块接收到的所述DCI中携带上行授权UL grant信息，则在所述DCI调度的物理层上行共享信道PUSCH中上报第二信息，所述第二信息包括N个参考信号索引值，其中，N为整数；
    接收模块，用于接收物理层下行控制信息DCI。
  17. 一种波束恢复装置，包括：
    接收模块，用于接收终端通过物理层上行控制信道PUCCH发送的第一信息；并接收终端通过所述DCI调度的物理层上行共享信道PUSCH上报的第二信息，所述第二信息包括N个参考信号索引值，其中，N为整数；
    发送模块，用于若所述接收模块接收到终端通过PUCCH发送的第一信息，向所述终端发送物理层下行控制信息DCI，所述DCI中携带上行授权ULgrant信息，指示所述终端上报第二信息。
  18. 如权利要求17所述的装置，还包括：
    恢复模块，用于根据所述第二信息选择备选波束进行波束恢复。
  19. 一种非易失性计算机存储介质，其中，所述计算机存储介质存储有可执行程序，该可执行程序被处理器执行实现权利要求1～15任一所述方法的步骤。
  20. 一种通信设备，包括存储器、处理器、收发器以及总线接口；所述处理器，用于读取存储器中的程序，执行：
    确定是否发生波束失败；在确定发生波束失败时，通过所述收发器在物理层上行控制信道PUCCH上发送第一信息，所述第一信息用于通知基站发生波束失败；以及通过所述收发器接收物理层下行控制信息DCI，若所述DCI中携带上行授权UL grant信息，则通过所述收发器在所述DCI调度的物理层上行共享信道PUSCH中上报第二信息，所述第二信息包括N个参考信号索引值，其中，N为整数；或者，执行：
    若通过所述收发器接收到终端通过物理层上行控制信道PUCCH上发送的第一信息，通过所述收发器向所述终端发送物理层下行控制信息DCI，所述DCI中携带上行授权UL grant信息，指示所述终端上报第二信息；并通过 所述收发器接收终端通过所述DCI调度的物理层上行共享信道PUSCH上报的第二信息，所述第二信息包括N个参考信号索引值，其中，N为整数。
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